'The Hangover 2' Photos Online Now -- First Look at Cast Back for Sequel

When Todd Phillips' 'The Hangover' did stellar business at the box office (close to $300 million on a $35 mil. investment), a higher-stakes sequel was inevitable. The first followed the misadventures of three men at a bachelor party in Las Vegas, and gave some star power to a risky cast of relative unknowns -- Bradley Cooper, Zach Galifianakis and Ed Helms. (Not to mention supporting players like Justin Bartha and Ken Jeong.)

But sequelizing a successful film means upping the stakes and going a little extra crazy, so 'The Hangover 2' is taking the trio across the ocean for fun and mis-adventure in Bangkok, Thailand. And with production kicking off, we already have our first look at the action -- and by action, we mean walking through an airport.